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Finding the Fourth Proportional to 35,955.20, 53,925.84 and 10,989.20

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Solution

The fourth proportional to 35,955.20, 53,925.84 and 10,989.20 is: 16,481.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,955.20 : 53,925.84 = 10,989.20 : x
  2. Step 2: Convert to fraction form
    35,955.20/53,925.84 = 10,989.20/x
  3. Step 3: Cross multiply
    35,955.20x = 53,925.84 × 10,989.20
  4. Step 4: Simplify right side
    35,955.20x = 592,601,840.93
  5. Step 5: Solve for x
    x = 592,601,840.93/35,955.20
  6. Step 6: Final answer
    x = 16,481.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.